diff --git a/src/lib.rs b/src/lib.rs
index 304b0da..4c70e26 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -81,6 +81,9 @@
 // mem::take and #[non_exhaustive] requires Rust 1.40
 #![allow(clippy::mem_replace_with_default, clippy::manual_non_exhaustive)]
 
+// ANDROID: Use std to allow building as a dylib.
+extern crate std;
+
 /// A macro that creates a projection type covering all the fields of struct.
 ///
 /// This macro creates a projection type according to the following rules: